JP4408273B2 - 燃料噴射弁及びその製造方法 - Google Patents
燃料噴射弁及びその製造方法 Download PDFInfo
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- JP4408273B2 JP4408273B2 JP2005236574A JP2005236574A JP4408273B2 JP 4408273 B2 JP4408273 B2 JP 4408273B2 JP 2005236574 A JP2005236574 A JP 2005236574A JP 2005236574 A JP2005236574 A JP 2005236574A JP 4408273 B2 JP4408273 B2 JP 4408273B2
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- Prior art keywords
- orifice
- injection valve
- fuel injection
- coining
- die
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- Fuel-Injection Apparatus (AREA)
Description
Claims (2)
- ダイ孔が設けられたダイの上にノズル又はオリフィスプレートをセットしてパンチでオリフィスを成形する燃料噴射弁の製造方法において、
前記ダイの上にセットされたノズル又はオリフィスプレートに対して、オリフィスの下流側からパンチを押し込んで未貫通のオリフィスを成形し、その後、前記未貫通孔のオリフィスの下流側先端部分となるべきオリフィス出口の開口縁の一部を含むオリフィス出口周囲の一部をコイニング加工してオリフィス下流側内壁の一部をオリフィス上流側内壁に対してオリフィス中心軸線側に傾斜させ、その後、前記オリフィスの上流側に位置する弁シート部を機械加工により成形することにより前記オリフィスを貫通させること特徴とする燃料噴射弁の製造方法。 - 請求項1において、前記コイニング加工を、コイニング部を有するパンチを用いて行うことを特徴とする燃料噴射弁の製造方法。
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JP2005236574A JP4408273B2 (ja) | 2005-08-17 | 2005-08-17 | 燃料噴射弁及びその製造方法 |
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JP2005236574A JP4408273B2 (ja) | 2005-08-17 | 2005-08-17 | 燃料噴射弁及びその製造方法 |
Publications (2)
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JP2007051573A JP2007051573A (ja) | 2007-03-01 |
JP4408273B2 true JP4408273B2 (ja) | 2010-02-03 |
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JP2005236574A Expired - Fee Related JP4408273B2 (ja) | 2005-08-17 | 2005-08-17 | 燃料噴射弁及びその製造方法 |
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JP (1) | JP4408273B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5033735B2 (ja) * | 2008-08-08 | 2012-09-26 | 日立オートモティブシステムズ株式会社 | ノズルの加工方法 |
CN108856470A (zh) * | 2018-07-23 | 2018-11-23 | 郑空军 | 手机金属面板冲孔装置 |
JP7429582B2 (ja) * | 2020-03-27 | 2024-02-08 | シチズンファインデバイス株式会社 | 斜め穴抜きプレートの製造方法 |
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- 2005-08-17 JP JP2005236574A patent/JP4408273B2/ja not_active Expired - Fee Related
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